Outputs (93)

An Al-Si-Ti hierarchical metal-metal composite manufactured by co-spray forming (2011)
Journal Article
Kelly, A. J., Mi, J., Sinha, G. V., Krug, P., Crosa, F., Audebert, F., & Grant, P. S. (2011). An Al-Si-Ti hierarchical metal-metal composite manufactured by co-spray forming. Journal of Materials Processing Technology, 211(12), 2045-2049. https://doi.org/10.1016/j.jmatprotec.2011.07.001

Spray forming with co-injection of a solid particulate phase to form a homogeneous distribution within the final spray formed billet has been studied as a new route to manufacturing metal-metal composites at large scale with negligible oxide. 12 wt%T... Read More about An Al-Si-Ti hierarchical metal-metal composite manufactured by co-spray forming.

A quantitative study of solute diffusion field effects on heterogeneous nucleation and the grain size of alloys (2011)
Journal Article
Shu, D., Sun, B., Mi, J., & Grant, P. S. (2011). A quantitative study of solute diffusion field effects on heterogeneous nucleation and the grain size of alloys. Acta Materialia, 59(5), 2135-2144. https://doi.org/10.1016/j.actamat.2010.12.014

The nucleation ability of inoculating particles inside the solute diffusion zone around growing grains during alloy solidification is studied using a spherical, equiaxed dendritic grain model coupled with a new modified free growth model to predict t... Read More about A quantitative study of solute diffusion field effects on heterogeneous nucleation and the grain size of alloys.

Spray forming of bulk ultrafine-grained Al-Fe-Cr-Ti (2010)
Journal Article
Banjongprasert, C., Hogg, S. C., Liotti, E., Kirk, C. A., Thompson, S. P., Mi, J., & Grant, P. S. (2010). Spray forming of bulk ultrafine-grained Al-Fe-Cr-Ti. Metallurgical and materials transactions. A, Physical metallurgy and materials science, 41(12), 3208-3215. https://doi.org/10.1007/s11661-010-0386-0

An Al-2.7Fe-1.9Cr-1.8Ti alloy has been spray formed in bulk and the microstructure and properties compared with those of similar alloys produced by casting, powder aomization (PA), and mechanical alloying (MA) routes. In PA and MA routes, a nanoscale... Read More about Spray forming of bulk ultrafine-grained Al-Fe-Cr-Ti.

Microstructure and property development in spray formed and extruded Al-Mg-Li-Zr alloys for aerospace and autosport applications (2010)
Journal Article
Hogg, S. C., Mi, J., Nilsen, K. E., Liotti, E., & Grant, P. S. (2010). Microstructure and property development in spray formed and extruded Al-Mg-Li-Zr alloys for aerospace and autosport applications. Materials Science and Engineering Technology / Materialwissenschaft und Werkstofftechnik, 41(7), 562-567. https://doi.org/10.1002/mawe.201000643

Low density Al-4Mg-1.3Li-0.4Zr and Al-6Mg-1.6Li-0.4Zr alloys were spray formed and the billets extruded under a range of conditions. The alloy compositions were selected to provide an attractive balance of tensile strength and elongation, without rel... Read More about Microstructure and property development in spray formed and extruded Al-Mg-Li-Zr alloys for aerospace and autosport applications.

Phase field modelling of dendrite fragmentation during thermal shock (2010)
Journal Article
Guo, Z., Mi, J. W., & Grant, P. S. (2010). Phase field modelling of dendrite fragmentation during thermal shock. Materials Science Forum, 654-656, 1524-1527. https://doi.org/10.4028/www.scientific.net/msf.654-656.1524

The dendrite grain growth of a succinonitrile based transparent alloy, their fragmentation under an intense thermal shock and the subsequnet morphology evolution during solidification have been simulated using a two-dimensional binary alloy phase fie... Read More about Phase field modelling of dendrite fragmentation during thermal shock.

Modelling and experiments concerning dendrite re-melting and its role in microstructural evolution in spray formed Ni superalloys (2010)
Journal Article
Zhang, Y., Guo, Z., Zhang, G., Mi, J. W., & Grant, P. S. (2010). Modelling and experiments concerning dendrite re-melting and its role in microstructural evolution in spray formed Ni superalloys. Materials Science Forum, 654-656, 1363-1366. https://doi.org/10.4028/www.scientific.net/msf.654-656.1363

This paper presents a combined experimental and modelling approach to understand dendrite fragmentation of atomised metal alloy droplets during deposition in spray forming, and to study quantitatively the relationship between this dendrite fragmentat... Read More about Modelling and experiments concerning dendrite re-melting and its role in microstructural evolution in spray formed Ni superalloys.

Refinement of TiB2 in Al-Ti-B grain refiner alloys by ultrasound and the effect on Al grain size (2010)
Journal Article
Shu, D., Sun, B. D., Mi, J. W., & Grant, P. S. (2010). Refinement of TiB2 in Al-Ti-B grain refiner alloys by ultrasound and the effect on Al grain size. Materials Science Forum, 654-656, 958-961. https://doi.org/10.4028/www.scientific.net/msf.654-656.958

High-intensity ultrasound was applied during the preparation of an Al-5Ti-1B master alloy when reacting fluoride salts with molten Al. The reaction rate was significantly increased with TiB2 particles of much reduced mean diameter and narrow width sp... Read More about Refinement of TiB2 in Al-Ti-B grain refiner alloys by ultrasound and the effect on Al grain size.

Modeling the deposition dynamics of a twin-atomizer spray forming system (2010)
Journal Article
Zhang, G., Li, Z., Zhang, Y., Mi, J., & Grant, P. S. (2010). Modeling the deposition dynamics of a twin-atomizer spray forming system. Metallurgical and Materials Transactions B, 41(2), 303-307. https://doi.org/10.1007/s11663-009-9333-0

A numerical study of the deposition dynamics of twin-atomizer spray-forming of large-diameter billets is presented with a focus on the coupled effect of the twinatomizer scan frequency and substrate rotation frequency. The common period of the two fr... Read More about Modeling the deposition dynamics of a twin-atomizer spray forming system.

Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming. Part 2 : Thermal modelling - Heat flow and solidification (2008)
Journal Article
Mi, J., & Grant, P. S. (2008). Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming. Part 2 : Thermal modelling - Heat flow and solidification. Acta Materialia, 56(7), 1597-1608. https://doi.org/10.1016/j.actamat.2007.12.022

In Part 1 of this paper, a model was described to simulate the dynamic shape evolution of Ni superalloy rings during spray forming, concentrating on the effects of droplet splashing and redeposition. In this part, a companion model is presented that... Read More about Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming. Part 2 : Thermal modelling - Heat flow and solidification.

Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming Part 1: Shape modelling - Droplet deposition, splashing and redeposition (2008)
Journal Article
Mi, J., & Grant, P. S. (2008). Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming Part 1: Shape modelling - Droplet deposition, splashing and redeposition. Acta Materialia, 56(7), 1588-1596. https://doi.org/10.1016/j.actamat.2007.12.021

A numerical model has been developed to simulate the dynamic shape evolution of Ni superalloy rings during spray forming. The model comprises: (1) a droplet primary deposition model, simulating droplet primary deposition at a deposition surface; (2)... Read More about Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming Part 1: Shape modelling - Droplet deposition, splashing and redeposition.